Home / 5,645.25-7,790.72-3,407.09

Finding the Fourth Proportional to 5,645.25, 7,790.72 and 3,407.09

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Solution

The fourth proportional to 5,645.25, 7,790.72 and 3,407.09 is: 4,701.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.25 : 7,790.72 = 3,407.09 : x
  2. Step 2: Convert to fraction form
    5,645.25/7,790.72 = 3,407.09/x
  3. Step 3: Cross multiply
    5,645.25x = 7,790.72 × 3,407.09
  4. Step 4: Simplify right side
    5,645.25x = 26,543,628.22
  5. Step 5: Solve for x
    x = 26,543,628.22/5,645.25
  6. Step 6: Final answer
    x = 4,701.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.